scholarly journals Antibiotic susceptibility pattern and risk factors associated with Acinetobacter and Pseudomonas infection at a tertiary care hospital

2021 ◽  
Vol 10 (1) ◽  
pp. 4-10
Author(s):  
Jatan Bahadur Sherchan
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Elderly Patients ◽  
Antibiotic Susceptibility ◽  
Predisposing Factors ◽  
P Value ◽  
Diabetic Patients ◽  
Susceptibility Pattern ◽  
Antibiotic Susceptibility Pattern ◽  
Acinetobacter Spp ◽  
Prolonged Hospital

Background: Infection due to Acinetobacter spp. and Pseudomonas aeruginosa is a major worldwide concern these days. Antibiotic resistance and predisposing factors among the patients for acquiring such infection is a major challenge globally and in Nepal. Objectives: To determine antimicrobial susceptibility pattern of Acinetobacter spp. and Pseudomonas aeruginosa isolates along with predisposing factors. Methods: A total of 9,705 clinical samples were processed in this analytical cross-sectional study from December 2019 to November 2020. Antibiotic susceptibility pattern was determined following Clinical Laboratory Standard Institute guidelines. Patients’ information was obtained after informed consent. Results: Acinetobacter spp. and Pseudomonas aeruginosa isolates were 92 (0.95%). Fifty-three (57.61%) samples were respiratory samples. Thirteen (20%) Pseudomonas aeruginosa and 18 (66.67%) Acinetobacter spp. were multidrug-resistant (MDR). Eight (12.31%) Pseudomonas aeruginosa strains and 13 (48.15%) Acinetobacter spp. strains were sensitive only to Colistin.   Twenty-two (95.65%) prolonged hospital stayers had MDR bacteria compared to only nine (13.04%) non-prolonged hospital stayers (p-value <0.001). Sixteen (94.12%) of diabetic patients had MDR bacteria isolates in comparison to only 15 (20%) of non-diabetic patients (p-value <0.001). Thirty-one (33.69%) were elderly patients (age ?65 years) and 61 (66.31%) were of age less than 65 years old. Seventeen (54.84%) of elderly patients had MDR isolates whereas only 14 (22.95%) of patients who are not elderly had MDR isolates (p-value =0.0047). Conclusion: Acinetobacter spp. and Pseudomonas aeruginosa strain were isolated from various samples. For effective treatment of infection by such organisms detailed microbiological diagnosis and drug susceptibility testing is needed along with identification of predisposing factors.

scholarly journals Prevalence of some virulence genes and antibiotic susceptibility pattern of Pseudomonas aeruginosa isolated from different clinical specimens

2020 ◽  
Author(s):  
Yamuna Chand ◽  
Santosh Khanal ◽  
Om Prakash Panta ◽  
Dipendra Shrestha ◽  
Dhruba Kumar Khadka ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibiotic Susceptibility ◽  
Virulence Genes ◽  
Agar Plate ◽  
Diffusion Method ◽  
P Value ◽  
Global Public Health ◽  
Susceptibility Pattern ◽  
Antibiotic Susceptibility Pattern ◽  
Clinical Specimens

Abstract Background: Pseudomonas aeruginosa is an opportunistic human pathogen and are reported to cause acute and chronic infectious diseases. Due to its high ability to acquire resistance to many antibiotics, it has become a global public health threat. It consists of some virulence genes that may lead to its pathogenicity. The main objective of this cross-sectional study was to detect the virulence genes and antibiotic susceptibility pattern of P. aeruginosa isolated from clinical specimens collected from governmental hospital of Nepal.Methods: A total of 7898 clinical specimens were analyzed for the period of six months from November 2018 to April 2019. The specimens were cultured on Nutrient agar, Blood agar, MacConkey agar, Chocolate agar, Cysteine-Lactose, Electrolyte Deficient agar plates and were incubated at 37°C for 24 hours. All the isolates were identified by standard biochemical tests and further confirmed by growth on Cetrimide agar plate. The antibiotic susceptibility testing was performed by modified Kirby-Bauer disc diffusion method following CLSI guideline. Multiplex-PCR was done to detect the virulence genes oprL and toxA. Statistical analysis was carried out using IBM SPSS Statistic ver. 25 and the p-value was calculated at significance level (0.05%) by using Chi square.Results: Out of these specimens investigated, 87 isolates were tentatively identified to be P. aeruginosa in which 20 (22.98 %) were found to be multidrug resistant. Comparatively, most of the P. aeruginosa were isolated from outpatients 63 (72.41 %) than inpatients 24 (27.58 %), from male 56 (64.36 %) than female 31 (35.63 %) and in age group 60-79 years (41.37 %). AST result showed the highest resistance of 100% with cefixime whereas susceptibilities of 83.9% and 81.6% with polymixin B and tobramycin were noticed respectively. The PCR results showed that all P. aeruginosa isolates carried oprL 87 (100%) and 83 (95.4 %) isolates showed toxA genes. Conclusion: The studies revealed that almost all P. aeruginosa harbors both oprL and toxA genes.

scholarly journals Beta-Lactamases Production in Multi-drug Resistant Acinetobacter species Isolated from Different Clinical Specimens

2019 ◽  
Vol 6 ◽  
pp. 44-50
Author(s):  
Mary Neupane ◽  
Sudeep K.C. ◽  
Subash Kumar Thakur ◽  
Om Prakash Panta ◽  
Dev Raj Joshi ◽  
...  
Keyword(s):  
Antibiotic Susceptibility ◽  
Acinetobacter Calcoaceticus ◽  
Clinical Samples ◽  
Susceptibility Pattern ◽  
Biochemical Tests ◽  
Acinetobacter Species ◽  
Antibiotic Susceptibility Pattern ◽  
Beta Lactamases ◽  
Clinical Specimens ◽  
Acinetobacter Spp

Objectives: To determine the prevalence of Acinetobacter spp. from different clinical specimens and detect different types of β-lactamase enzymes. Methods: Different clinical samples were collected and 125 Acinetobacter spp. were isolated.  Various biochemical tests were carried out to speciate the Acinetobacter spp. The antibiotic susceptibility pattern and β-lactamase enzymes like Extended spectrum β-lactamase (ESBL), Metallo β-lactamase (MBL) and AmpC β-lactamase were determined. Results: Of the total 125 isolates, the most predominant species was Acinetobacter calcoaceticus-A. baumannii (Acb) complex (80%). Highest rate of isolation of Acinetobacter species were from in-patients (neonates’ blood sample).  Among all, 44.8% isolates were found to be MDR with the majority being resistant to aminoglycosides, carbapenems and fluoroquinolones but not to colistin. ESBL, MBL and AmpC beta-lactamase was detected in 43.2%, 15.2% and 1.6% of the isolates respectively. Conclusion: Acinetobacter calcoaceticus-A. baumannii complex should be considered for detection in hospitalized patients. The analysis of antibiotic susceptibility pattern and β-lactamases would be helpful to establish network surveillance in order to maintain and control the spread of these resistant strains.

Prevalence of surgical site infection and antibiotic susceptibility pattern among post-operative patients at a tertiary hospital in Lafia Nasarawa state, Nigeria

2021 ◽  
Vol 7 (4) ◽  
pp. 117-120
Author(s):  
Ikrama Hassan ◽  
◽  
Michael Anazodo ◽  
Agbo Christian Agbo ◽  
Oga Esa Ochapa ◽  
...  
Keyword(s):  
Surgical Site Infection ◽  
Antibiotic Susceptibility ◽  
Surgical Patients ◽  
P Value ◽  
Site Infection ◽  
Susceptibility Pattern ◽  
Klebsiella Species ◽  
Mannitol Salt Agar ◽  
Antibiotic Susceptibility Pattern ◽  
Sensitivity Pattern

Background: Surgical site infection is a common challenge to both the surgical patients and the surgical specialists and may lead to morbidity and mortality. The aetiologic agents vary from one place to the other, ditto the antibiotic sensitivity pattern. This study determined the prevalence of surgical site infection, the aetiologic agents and the antibiotic susceptibility pattern in a tertiary health facility in Lafia. Methods: The study was carried out over 5 (2015 – 2019) year period on post operative patients at the Dalhatu Araf Specialist Hospital (DASH) in the surgical and obstetrics and gynaecological wards. Swab taken from infected wounds were cultured using 2 plates of blood agar, MacConkey agar and Mannitol salt agar. The antibiotic susceptibility testing was done using Kirby Bauer technique. The data was analysed using SPSS version 23. Results obtained were presented in tables. Significant p value is < 0.05. Results: The mean age of the respondents is 28.6 ± 11.2 years. Of the 408 surgical patients seen within the 5 year period, 15 (3.7%) had surgical sites infection given a prevalence of 3.7%. A total of 6.6% of the patients who had undergone surgeries were immune-compromised. Escherichia coli and Klebsiella species were the two cultured organisms accounting for 75% and 25% respectively. Antibiotic susceptibility revealed that all (100%) were sensitive to the quinolone (ciprofloxacin). Conclusion: Surgical site infection is most common in the third decade of life with a mean age of 28.6 ± 11.2 years. There is a low prevalence of surgical site infection from this study. Eschericia coli and Klebsiella species were the two common organism isolated with both having a good sensitivity to ciprofloxacin

scholarly journals Antibiotic susceptibility pattern of Klebsiella pneumoniae and Pseudomonas aeruginosa isolated from some drinking wells in Ondo town southwest Nigeria

2021 ◽  
Vol 25 (1) ◽  
pp. 59-63
Author(s):  
O. Aromolaran ◽  
O.A. Amodu
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Klebsiella Pneumoniae ◽  
Water Samples ◽  
Antibiotic Susceptibility ◽  
Diffusion Method ◽  
Resistant Bacteria ◽  
Well Water ◽  
Susceptibility Pattern ◽  
Antibiotic Susceptibility Pattern ◽  
Southwest Nigeria

Antibiotic-resistant bacteria (ARB) strains have become a global health threat. This study aimed to determine the antibiotic susceptibility pattern of Klebsiella pneumoniae and Pseudomonas aeruginosa isolated from wells in Ondo town, Southwest Nigeria. Twenty-eight well water samples were analyzed for the presence of K. pneumoniae and P. aeruginosa by standard pour plate technique. The bacterial isolates were tested against eight commonly use antibiotics using Kirby Bauer disc diffusion method. The percentage occurrence of K. pneumoniae and P. aeruginosa in the well water samples were 17.86% and 21.43%, respectively. Two multi-drug resistant strains of K. pneumoniae were isolated, which were resistant to at least three classes of antibiotics. Fifty percent of the P. aeruginosa isolates were resistant to caftazidime, cefuroxime, nitrofurantoin, and ampicillin. None of the isolates was fully susceptible to cefuroxime, but have all showed resistance to β-lactam (ceftazidime, cefuroxime augmentin, and ampicillin) antibiotics. Cefuroxime may not be effective an effective drug in the treatment of K. pneumoniae and P. aeruginosa implicated infections in these communities in Ondo. Also, the over-use of antibiotics should be discouraged in order to curtail the menace of antibiotic resistance Keywords: Well water, Antibiotics, Klebsiella pneumoniae, Pseudomonas aeruginosa

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